This data archive contains model runs and data analysis files to the research article Impact of declining renewable energy costs on electrification in low emission scenarios by Gunnar Luderer, Silvia Madeddu, Leon Merfort, Falko Ueckerdt, Michaja Pehl, Robert Pietzcker, Marianna Rottoli, Felix Schreyer, Nico Bauer, Lavinia Baumstark, Christoph Bertram, Alois Dirnaichner, Florian Humpen��der, Antoine Levesque, Alexander Popp, Renato Rodrigues, Jessica Strefler, Elmar Kriegler forthcoming in Nature Energy (2021). ModelRuns (directory) contains all model runs of the scenarios underlying the paper. DataAnalysis (directory) contains all RMarkDown-Notebooks that were used for the data analysis and the generation of the figures of the paper. ScenarioNames.pdf contains the mapping from scenario names used in the paper to the model experiment names (in the directory ModelRuns). ScenarioData_IAMC_Format.xlsx contains the scenario output date in the generic IAMC-format (https://data.ene.iiasa.ac.at/database/) as submitted to the IPCC-AR6-database (https://iiasa.ac.at/web/home/research/researchPrograms/Energy/200513_IPCCwebinar.html)